Mine did that at 83k. I replaced the LIM Gaskets at 74k and did about 4 oil changes in that 9k miles... but still siezed a bearing while going down the highway... sux but P/O can be harder on the car than they will admit and we get stuck with the problems. but as you said, new motor moving forward.

While the new one is out, this makes for a good time to do alot of mods. I needed the car as a DD so I get to play hardball with the car when it comes to my modding.

Good luck